I have a problem with connecting a MPU-92/65 to Arduino Leonardo and getting out data. I have used several versions of code that can be found on internet including
and the official code for MPU-9150 Accelerometer + Gyro + Magnetometer (compass) in Arduino homepage
and also a code I used previously with MPU-6050.
But all of these don't send any data back and the serial monitor stays blank.
Then I found this code on the internet -
// By Arduino User JohnChi
// August 17, 2014
// Public Domain
#include<Wire.h>
const int MPU_addr=0x68; // I2C address of the MPU-6050
int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;
void setup(){
Wire.begin();
Wire.beginTransmission(4);
Wire.write(0x6B); // PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}
void loop(){
Wire.beginTransmission(4);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr,14,true); // request a total of 14 registers
AcX=Wire.read()<<8|Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
AcY=Wire.read()<<8|Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
AcZ=Wire.read()<<8|Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
Tmp=Wire.read()<<8|Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX=Wire.read()<<8|Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
GyY=Wire.read()<<8|Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
GyZ=Wire.read()<<8|Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)
Serial.print(AcX);
Serial.print(",\t\t"); Serial.print(AcY);
Serial.print(",\t\t"); Serial.print(AcZ);
Serial.print(",\t\t"); Serial.print(Tmp/340.00+36.53); //equation for temperature in degrees C from datasheet
Serial.print(",\t\t"); Serial.print(GyX);
Serial.print(",\t\t"); Serial.print(GyY);
Serial.print(",\t\t"); Serial.println(GyZ);
delay(100);
}
And from this code I finally got something, although rather gibberish, in the serial monitor.
I am still quite a beginner in all things programming so I am not quite sure what exactly am I doing wrong. Or is the MPU-92/65 broken?